sorting.hpp
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16 
17 #pragma once
18 
19 #include <cudf/aggregation.hpp>
20 #include <cudf/types.hpp>
22 #include <cudf/utilities/export.hpp>
24 
25 #include <memory>
26 #include <vector>
27 
28 namespace CUDF_EXPORT cudf {
29 
52 std::unique_ptr<column> sorted_order(
53  table_view const& input,
54  std::vector<order> const& column_order = {},
55  std::vector<null_order> const& null_precedence = {},
58 
67 std::unique_ptr<column> stable_sorted_order(
68  table_view const& input,
69  std::vector<order> const& column_order = {},
70  std::vector<null_order> const& null_precedence = {},
73 
92  std::vector<order> const& column_order,
93  std::vector<null_order> const& null_precedence,
95 
111 std::unique_ptr<table> sort(
112  table_view const& input,
113  std::vector<order> const& column_order = {},
114  std::vector<null_order> const& null_precedence = {},
117 
123 std::unique_ptr<table> stable_sort(
124  table_view const& input,
125  std::vector<order> const& column_order = {},
126  std::vector<null_order> const& null_precedence = {},
129 
152 std::unique_ptr<table> sort_by_key(
153  table_view const& values,
154  table_view const& keys,
155  std::vector<order> const& column_order = {},
156  std::vector<null_order> const& null_precedence = {},
159 
165 std::unique_ptr<table> stable_sort_by_key(
166  table_view const& values,
167  table_view const& keys,
168  std::vector<order> const& column_order = {},
169  std::vector<null_order> const& null_precedence = {},
172 
203 std::unique_ptr<column> rank(
204  column_view const& input,
205  rank_method method,
206  order column_order,
207  null_policy null_handling,
208  null_order null_precedence,
209  bool percentage,
212 
256 std::unique_ptr<column> segmented_sorted_order(
257  table_view const& keys,
258  column_view const& segment_offsets,
259  std::vector<order> const& column_order = {},
260  std::vector<null_order> const& null_precedence = {},
263 
269 std::unique_ptr<column> stable_segmented_sorted_order(
270  table_view const& keys,
271  column_view const& segment_offsets,
272  std::vector<order> const& column_order = {},
273  std::vector<null_order> const& null_precedence = {},
276 
324 std::unique_ptr<table> segmented_sort_by_key(
325  table_view const& values,
326  table_view const& keys,
327  column_view const& segment_offsets,
328  std::vector<order> const& column_order = {},
329  std::vector<null_order> const& null_precedence = {},
332 
338 std::unique_ptr<table> stable_segmented_sort_by_key(
339  table_view const& values,
340  table_view const& keys,
341  column_view const& segment_offsets,
342  std::vector<order> const& column_order = {},
343  std::vector<null_order> const& null_precedence = {},
346  // end of group
348 } // namespace CUDF_EXPORT cudf
Representation for specifying desired aggregations from aggregation-based APIs, e....
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
A set of cudf::column_view's of the same size.
Definition: table_view.hpp:200
A set of cudf::column's of the same size.
Definition: table.hpp:40
std::unique_ptr< column > stable_segmented_sorted_order(table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns sorted order after stably sorting each segment in the table.
std::unique_ptr< table > stable_sort(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a stable lexicographic sort of the rows of a table.
std::unique_ptr< table > sort(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a lexicographic sort of the rows of a table.
std::unique_ptr< column > rank(column_view const &input, rank_method method, order column_order, null_policy null_handling, null_order null_precedence, bool percentage, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Computes the ranks of input column in sorted order.
std::unique_ptr< table > stable_sort_by_key(table_view const &values, table_view const &keys, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a key-value stable sort.
std::unique_ptr< column > sorted_order(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Computes the row indices that would produce input in a lexicographical sorted order.
bool is_sorted(cudf::table_view const &table, std::vector< order > const &column_order, std::vector< null_order > const &null_precedence, rmm::cuda_stream_view stream=cudf::get_default_stream())
Checks whether the rows of a table are sorted in a lexicographical order.
std::unique_ptr< table > stable_segmented_sort_by_key(table_view const &values, table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a stably lexicographic segmented sort of a table.
std::unique_ptr< table > sort_by_key(table_view const &values, table_view const &keys, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a key-value sort.
std::unique_ptr< column > segmented_sorted_order(table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns sorted order after sorting each segment in the table.
rank_method
Tie-breaker method to use for ranking the column.
Definition: aggregation.hpp:54
std::unique_ptr< column > stable_sorted_order(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Computes the row indices that would produce input in a stable lexicographical sorted order.
std::unique_ptr< table > segmented_sort_by_key(table_view const &values, table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Performs a lexicographic segmented sort of a table.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
rmm::device_async_resource_ref get_current_device_resource_ref()
Get the current device memory resource reference.
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
null_order
Indicates how null values compare against all other values.
Definition: types.hpp:159
null_policy
Enum to specify whether to include nulls or exclude nulls.
Definition: types.hpp:126
order
Indicates the order in which elements should be sorted.
Definition: types.hpp:118
cuDF interfaces
Definition: aggregation.hpp:35
Type declarations for libcudf.